Sub-pixel issues solved?

I got my iPod Video less than a month ago. Today, I was watching some Aqua Teen Hunger Force on it and I noticed some pixels were stuck on red, blue, or green. I did a little research and found that means those sub-pixels are stuck on. I did a little searching around these forums and saw a color test from the diagnostic menu. This was quite helpful once I got to the black screen test. The pixels were obviously showing color. Then I accidently bumped the iPod and noticed different pixels were now stuck and a couple of the ones that were stuck weren't anymore. This got me thinking a little so I gave the screen a flick. After a few flicks, viola! No more sub-pixels stuck on, they work normally now. I think this is a rather annoying issue and I would have thought about returning the iPod if they were truely stuck on. I thought I'd say something about it on here though in case anybody runs into a similar issue.
Windows XP Pro

To remove the coloring completely, use greyscale instead of subpixel rendering.
However, I would recommend instead finding a compromise you're happy with, e.g. playing with the FIR.

Similar Messages

Font smoothing, font sizing, sub-pixel tuning, OS X vs Windows

I have a query regarding font the font smoothing implementation in OS X.
Having just come from the Windows world (using ClearType) naturally comparisons will be made. I am trying to get fonts looking as readable as possible on my Mac. I have 19" LCD connected via DVI so would expect no issues there. It seems difficult to get fonts looking... crisp. I am starting from the basis of using font smoothing across the board as recommended. Turn off smoothing is set to font size 8 or smaller.
I note with respect to tuning of font smoothing (anti-aliasing) that there is not a 'fine tuning' tool like as made available on Windows...
http://www.microsoft.com/typography/cleartype/tuner/Step1.aspx
for the Mac. At least I can't find anything Googling. And I am not thinking of TinkerTool as that is not a fine tuner. The Windows ClearType tuner can really make a noticeable difference by adjusting the sub-pixel tuning. Is there any equivalent tool/configuration option available for Macs?

You must have extremely good vision to be able to
tell the enhacement made by ClearType on XGA or
better displays. I wish my eyesight is as good as
yours.
Well by your own admission you must be half blind, and I think you must be if you can't see the difference between - and let's be precise about this - no anti-aliasing vs. anti-aliasing +- sub-pixel rendering. Whether on Windows and/or OS X. There is.
Subpixel rendering is a trick used when resolution of
displays are challenged and small font readability is
crucial.
Today, the only place this makes sense is on
cell phones when you are trying to render small type
like a webpage.
I believe the website links I posted show that I have a reasonable grasp of what sub-pixel rendering is, that was not the purpose of my question. Also, actually, you are incorrect when you state that sub-pixel rendering is relevant/necessary only for small fonts. The exact opposite is true - usually sub-pixel rendering (including in OS X) is turned off for small fonts because it tends to make them more unreadable.
On desktop displays today at XGA or greater resolution,
the tradeoff in enhancing a bit in resolution is
outweighed by the added computation cycles needed to
filter the entire display so the eye sees "grey" on
average rather than red or green or blue.
Well you better rush and tell Apple to rip it out of OS X... because they seem to disagree with you as both anti-aliasing and sub-pixel rendering are included, and encouraged to be used, in OS X!
I'm sorry, but your statements are just plainly wrong and unconsidered.
Back to my - still unanswered, factual and valid question. The implementation of anti-aliasing + sub-pixel rendering in OS X does not appear, and I am stating this unbiasedly, to be as good as it could be (as I have seen in Windows). BTW this is not solely my finding as a number of very experienced Mac users have pointed out:
Here...
http://www.michelf.com/weblog/2006/subpixel-antialiasing-achilles-heel/
and here...
http://www.betalogue.com/2006/01/24/pages-20-does-not-fix-font-smoothing-issue/
and here...
http://mjtsai.com/blog/2006/02/04/font-smoothing-in-pages/
I gather from the replies I have received thus far, and from research on the Internet, that there is currently no way - going into Unix config files or by some utility - to address this issue. Hopefully it will be improved in a later version of OS X.
BTW - this does not stop me loving my new Mac!

HP TouchSamrt 520-1001 (one red sub-pixel on the screen)

Hello!
Yesterday I bought a computer, and now on the screen I saw a large red sub-pixel. I am very upset, because it costs money. How to solve this problem? How to fix this sub-pixel?
I bought the program JscreenFix, but it did not help. (((

There is a pixel policy and it requires that a specific number of pixels (plural) be bad within a certain radius. One bad pixel does not make a warranty claim. All laptop makers have similar policies. It is a holdover from the days when a laptop screen was much more expensive than now and frankly I think it is time to stand behind the product a bit better, but all you can really do is make a nuisance of yourself and see if they will bend the rules.

Video Pixelation Issue - New HP Pavilion 15-P008TX Notebook - Windows 8.1

Ahoy,
I've seen topics regarding this issue - i.e. first day running a new HP Pavilion 15-P008TX, using Windows 8.1...
However the video quality on videos being played from the DVD Drive, HDD, and streamed videos (e.g YouTube) are extremely low quality.
Unfortunately I can't screenshot the issue - the best way to describe it would be to say that the videos look like YouTube videos being viewed on 144p
DVDs, and even 1080p videos are low quality and pixelated...
So far I've tried the following to no avail:
- Uninstalling and Reinstalling intergrated video drivers (Intel HD 4400) and Nvidia 3D drivers (Geforce 830M)
- Switching scaled views in the display section
- Installing VLC (with the latest codecs) to test if it was a codec issue
- Running a windows update
- Changing Graphic settings that may intefere with issues in quality (both Intel HD settings app and Nvidia 3D settings)
Windows Apps and programs aren't affected, only video playback.
First day of using my new HP Notebook, and i'm hoping to resolve this issue promptly.
Cheers.

Hello Whoissyntax,
Welcome to the HP Forums!
In terms of the video pixel issue, it seems like there might be a hardware failure. You have also done the majority of the troubleshooting. The only other steps I can suggest are here: Display Quality Issues
If you are not satisfied, I would contact HP phone support, or return the product if possible. You can utilize this website to learn how to contact HP appropriately, based on your region: Contact HP Worldwide
Please let me know if you have any other questions or concerns. Thanks for bringing this issue to the HP Forums. Have a great day!
Mario
I worked on behalf of HP.

Disable sub-pixel redering

With the newest Flash players websites display small fonts in
bad colours. This is caused by the sub-pixel rendering the Flash
player applies for font smoothing. On OSX you can choose between
CRT and LCD anti-aliasing, the first staying true in colour, the
latter looking sharper because of sub-pixel rendering. A letter O
for example looks green in the middle, and magenta on bottom and
top.
I hate the looks of the windows ClearType sub-pixel style.
First I thought it was the Windows routine causing this in Flash,
but now I found out Flash text looks crap on OS X too. It seems the
last versions have sub-pixel anti-aliasing built into the Flash
Player itself. We have a lot of trouble with this in site
development. Clients ask us what happened to the fonts.
My questions are:
- Is there a way to change the anti-aliasing behaviour in the
development stage of a site regardless of the OS or user settings
for anti-aliasing?
- If it is dealt with on the client side, can Adobe put an
option with anti-aliasing settings in the Flash Player settings
menu (which lacks tons of other things as well)?
- Which Flash Player is the last one that did not do
sub-pixel rendering (version 7 or 8?). I remember old Flash sites
that did not suffer from this. I want to have 1 machine with the
old player in that case.

Maybe Adobe must start to include a preference panel for Flash in browsers that includes:
- anti-alias settings: off, CRT, LCD sharp, LCD balanced
- sound volume settings
- zoom settings to fill-screen any video or flash site
Now the preference pane is complete useless.

HT4044 What is the acceptable number of sub-pixel anomalies in the MacBook 13 inch?

What is the acceptable number of sub-pixel anomalies in the MacBook 13 inch?

Actually, I am a technician in training and I was looking for the answer for a discussion I was having yesterday. I was actually looking for the amount of pixels that can be bad in order for the screen to be replaced. Here's what the service manual for the Mac Book has to say:

PS FW PS + sub-pixel nudge

I downloaded Custom Nudge for FW at http://johndunning.com/fireworks/about/CustomNudge
This is because my understanding is PS wont do sub pixel nudge ( i tried Optipix 3.1 and it did not seem to work right)
Question is:
Can I import the PSD to FW > make the nudge edit in FW > save or export > open in PS = PSD is exactly as it was (meaning no layers / modes / filters have been altered in the roundtrip edit by FW ?????

Photoshop can do sub-pixel nudges but only when working with vectors as those aren't bound by pixel restrictions. Don't quite see the point in nudging raster layers in sub-pixel increments, all you'll get is messy edges

AS2 noScale and pixelation issue

We are doing a number of banners for a client in AS2 using Flash 8 Pro. The version was their specification.
Now I've generated a series of PNGs in photoshop at precisely the same dimensions an imported them directly into the Flash Library.The problem is, when we epublish this to HTML it scales up about 120% and pixelates badly. I've already explored a few workarounds to varying success. Allow me to explain:
In the swf preview (Ctrl+Enter) I get no scale or pixelation issues. The render is clean and sized correctly. The scale problem is only happening in the HTML publishing.
-I double checked the code on the HTML and the size specifications are the same as those in my FLA and PSD. Identical.
-In the publishing settings I discovered that the noScale option prevented the issue, but only for the machine I was working on. None the other test machines saw any improvement in the published banner(we have 4).
-I tried embedding a noScale Actionscript directly into the FLA. Same issues as above. Only the work PC displayed the correct size, the other machines did not.
-I tried manually setting the HTML publish size specifications. Again, same problem.
What's strange to me is that the noScale only corrects the problem for the machine the project was done on. Makes me think some caching is to blame for the misrepresentation. And the HTML Publish seems to be ignoring my size specifications for the SWF altogether. Can someone tell me why this is happening?

Well it looks like I may have resolved this issue, sort of. John (owner of the tapes) let me borrow his camera for the experiment (Thanks). This is what I did with the theory that if I captured using a sony dcr-vx2000 pixelation would be reduced.
The other night (late), I pulled some hurricane Katrina footage that I had not captured yet and capture it with the canon xl2. on playback of the capture NO PIXELATION was observed at all(I watched it three times). I took the originalvtapes that I worked with last week on the wedding and recaptured on the caon xl2. Resulted in occasional pixelation. I then took the same tape and re captured it from the sony camera. Resulted in NO pixelation when playback observed on a tv and on pc screen.
Conclusion:
even though ths is not scientifically provef true or fals, I observed that to capture from a mini dv tape if shot on sony camera, you need to use a sony camera for capture. Same thingapplies with canon.
Note: Canon and Sony, please address these issues as a professional courtesy to the rest of your customers. Thank you.

OTA Update 4.08.605.2 "Rebooting Now..." Issue - SOLVED!

After so many tries and frustration I finally came across the information below and it worked like a charm
http://forums.androidcentral.com/verizon-droid-incredible/134246-second-gb-update-patch-wont-reboot-issue-solved.html
Can't say this will work for everyone, but it worked for me.
Boot into recovery
Press and hold Power, Choose "Restart" option
When screen turns off, press and hold Volume Down and Power
When the white HBOOT screen appears, use the volume button to move down to “RECOVERY.”
Press the Power button to select “RECOVERY.”
When the triangle and exclamation appears, hold the Volume Up and Power button at the same time.
Using the volume button, scroll down to “Wipe cache partition” and select it.
Select "Reboot system now"
You can now wait for the update to show up again, or try one of the methods in the post: For those who want the second GB update/patch to get the update again. It should reboot this time. Beware, it will stay at the Droid Eye screen after reboot for a while (~5 mins), but eventually, it did get installed. Be sure to make a lot of space for it though...

The restart option that AmDroid is talking about is not on the regular phone menu. Please read his post carefully. What he is talking about is in an advanced recovery based menu option.
Also, I was on 2.2 and the clear cache set date and time forward trick did not work for me to get the udpate. The clear cache and set date and time forward trick seems to mostly work if you are already on 4.06 software version and want to get the 4.08 software version.
For those on 2.2, patience is warranted! However, if you really cant wait and want to go the 4.06 update manually, you can search Android Forums dot com for manually install gingerbread. And don't worry about the article talking about being rooted. You dont need to be rooted. The instructions will work for a stock phone too. As soon as you do the manual 4.06, the 4.08 update will show up immediately.
Hope this helps!

Hi all ...I would like to add a language that is not available in Photoshop cc2014 .. My computer writes it but backwards .. How can I have this issue solves?

hi all ...I would like to add a language that is not available in Photoshop cc2014 .. My computer writes it but backwards .. How can I have this issue solves?

What language are you talking about? You might need to enable Edit/Preferences/Type/Middle Eastern and South Asian for proper display.

Does Motion 5 render using Sub-Pixel Rendering, and if not, why not?

I'm curious if Motion 5 uses sub pixel rendering to help smooth out text renders (or any renders for that matter)? I work professionally rendering graphics for film and tv and most of our work requires Sub Pixel rendering. I can't find any documentation letting me know one way or the other.
-Glen

Motion5 is a 'stand-alone'-app, you can use it as your 'special effects maker' for any edit-app, as iMovie, FC/e, or Premiere, or Hitfilm, or whatever...
Even with FCPX, there's actually no round-tripping:
So, export your material from your editor, apply effects, export from M5, import back to editor. Works like charme!
… what you miss: M5 allows creation of titles, transitions, generators, effects as 'plug-ins' for FCPX. So, for repeatedly things, I do not create individual 'projects' again and again, I just built me a plug-in. Example: To insert via an effect the goalies in my weekly soccer-reports, I made me a very elaborated 'title', with a selector menu, and instantly FCPX inserts the correct picture of player, his name, all animated, bells&whistles etc etc.-
You can create this as 'stand alone' projects for any other editor too... less convieniant. But optional.
No need for FCPX…

Unable to disable sub-pixel rendering on fonts

I have an odd situation with my font configuration where I'm trying to disable sub-pixel rendering but certain applications (notably, firefox) do not seem to be respecting my font settings.
I've tried to disable sub-pixel rendering via fontconfig by creating the relevant symlink:
# ln -s ../conf.avail/10-no-sub-pixel.conf /etc/fonts/conf.d/10-no-sub-pixel.conf
I have also made sure that this is the lowest-numbered symlink in the /etc/fonts/conf.d directory.
Though I don't think it should matter, I have also ensured that the following files do not exist:
$ rm -rf ~/.fonts.conf.d/
$ rm -rf ~/.fonts.conf
$ rm -rf $XDG_CONFIG_HOME/fontconfig/conf.d/
$ rm -rf $XDG_CONFIG_HOME/fontconfig/fonts.conf
I'm not running a desktop environment and I am using Openbox as my window manager. Currently, chromium doesn't use sub-pixel rendering on its fonts though I'm finding that firefox and openbox do display fonts using sub-pixel rendering despite the aforementioned symlink.
I suspected maybe gconf might have something to do with this but I uninstalled it and the problem still persists.
I am confused as to why different applications would display the fonts differently. Is there some other mechanism for controlling sub-pixel rendering that I am overlooking?
Last edited by battlepanic (2012-12-03 23:48:25)

drcouzelis wrote:
battlepanic wrote:on both machines
Font newbie question: Does being able to see sub-pixel rendering depend on the monitor you're using?
Yes, and no.
Yes in the sense that the design of your monitor matters in order for the subpixel rendering to achieve its intended effect. No in the sense that it will always change the look of your fonts, but it must be properly configured for your particular monitor and in some cases it is simply not going to work correctly.
Sub-pixel rendering doesn't make sense on CRT monitors. If you are using a CRT, you definitely do not want this. It is meant to be used on flatscreen (i.e. LCD, OLED, etc.) monitors and it typically allows for a higher effective vertical resolution at the expense of color fidelity. Some people like this look and some people don't.
The pixel geometry on your LCD monitor matters. If sub-pixel rendering is turned on, whatever software is rendering your fonts needs to know the physical layout of the red, green, and blue pixel components on your monitor. On an flatscreen monitor, the left to right order within each pixel is typically red, green, then blue, though this is not always the case.
A monitor with a high pixel density would also make it more difficult to discern whether or not sub-pixel rendering is turned on by virtue of the fact that as pixel density increases, it becomes more difficult to see the individual pixel components.
Last edited by battlepanic (2012-12-05 23:49:46)

Besides the pixel issue any other reason not to use iphone apps in ipad?

besides the pixel issue any other reason not to use iphone apps on ipad??

There are no technical reasons why you can't use them (unless they are some of the few apps that require full phone capability which you won't be able to install). -If you are happy with either using them in an iPhone sized portion of the screen, or with the pixelated 2x size, then use them. I use quite a few apps from my iPhone and iPod Touch, and I've got used to the pixelisation and I don't really notice it as much as I used to.

Is Cleartype able to support both RGB and BGR sub pixel panel displays at the same time?

Hi,
I am using 2 27' LED displays on my PC. One has RGB sub pixel, the other has BGR sub pixel.
I have problem to tune the font using Cleartype. I have tried to tune all displays a few times and always get the following result.
If I use the RGB one as the primary display, the font on the RGB display looks ok but the font on the BGR display looks weird after tuning using cleartype.
If I use the BGR display as the primary, the font on the BGR display looks ok but the font on the RGB display looks weird after tuning using cleartype.
Basicly, the after tuning with Cleartype, the font on the Primary display looks good but on the other looks weird.
I have also tested with single display setup. i.e. connect only the RGB sub pixel display or the
BGR sub pixel display.
ClearType tuning works well for single display setup no matter which display I have connected.
But once I connect the 2nd display and tune using Cleartype, the font on the Primary display looks good but on the other looks weird. (The same as above)
To be more specific, the RGB display is Philips 278C4 (connect using HDMI), the BGR display is Dell P2714H (connect using DisplayPort. I have also tried DVI. DisplayPort or DVI give same result).
My system is Win 8.1 Pro x64 JA-JP with all latest patches installed, and my graphic card is nVidia GTX 760, with the latest driver installed.
I suspect this is due to one display has RGB sub pixel panel, and the other has BGR sub pixel panel, which means
Windows ClearType need to take care both RGB and BGR for at the same time. I am not sure if this is fully supported by Windows 8.1 ClearType.
Is there any solution or workaround to make the font on both displays looks nice?
Thanks.

Hi,
Windows includes several technologies to render text on the screen. These include Windows GDI, Direct Write and Windows Presentation Foundation.
Windows GDI is limited to using one set of ClearType settings per system
while the other two support different settings per display.
It depends. Most LCD screens have a RGB striping order. A very small number have a striping order of BGR.
For more question, refer to this link:
ClearType FAQ
http://www.microsoft.com/typography/ClearTypeFAQ.mspx
Kate Li
TechNet Community Support

9800 XT residual pixel issues

Hi everyone, I have a Dual 1.8 G5 with 2 gb of RAM and a Viewsonic VX2025 LCD monitor. I recently purchased a system pull 9800 XT card from OWC a couple of days ago and popped it in.
I know this card was an upgrade option for my 1.8 from Apple so I thought there should be no issues with it...not really.
I have been suffering some odd pixel issues...not really pixels but rather sizeable SQUARES all over the screen. Hovering a window or even doing a selection area will remove these 'pixels' but will reappear later on. Not in the same spots mind you. Happens as well when watching DVDs.
Games are the worst. It's almost as if I can see the refresh or 'scan'. I have zapped the PRAM, I have repaired permissions and have even popped the card in and out to make sure the contacts are true.
Please please please...anyone with advice, any advice!
Dual 1.8 G5 Mac OS X (10.4.8) 2gb RAM and a Viewsonic VX2025 monitor

Ok, I'm back and the card is acting up again.
A few days ago, I walked in my computer room and saw my G5 had the gray screen crash. Fan was kicking hard. I did the shutdown and restarted after 15 seconds. My screen was suffering the pixel/quilt issue I had awhile ago.
I ended up raising the overclock of the card from 5% to almost 10% to make the pixels go away. Also, from boot up, It seems there is quite a delay for aticellerator to kick in and the initial screen is riddled with squares. I have to activate the screensaver to 'wash off' of pixels and get a decent desktop.
I have tried reinstalling aticellerator.
I have physically removed and reinstalled the card.
I have downloaded whatever drivers ati had to offer for the 9800xt.
I have even reinstalled my system. I did this thinking maybe with a fresh reinstall and Tiger having a chance to rescan my current setup would be able to install the appropriate drivers...in case there was a conflict somewhere.
Any advice anyone? Thanks!
Dual 1.8 G5 Mac OS X (10.4.8) 2gb RAM / Radeon 9800XT

Sub-pixel issues solved?

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